Be seen!

Had I been in front - how would you have seen the white reflecting stuff that faced forwards?
Well there are 3 factors to consider. 1. Bright sunshine - no can see! 2. So far behind the superior Blue machine - no can see. 3. In front??? That's just not possible either!
 
Glasses wearers tend to scan using their neck - non glasses wearers move their eyes.

Amigo,
Scan yes (one direction), saccade (back and forth) I reckon not likely.
 
Amigo,
Scan yes (one direction), saccade (back and forth) I reckon not likely.
It's even less likely if they have progressive lenses. I saccade fine without my reading glasses on. And with the "never to be repeated" progressives I have to move my head or that I wish to see into the area of focus. My point is - glasses wears probably saccade far far less.